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Audio Research
First released in 1974
SP3
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If you make a purchase, Linephaze may receive an affiliate commission.Specifications
amplification technologyVacuum Tube
Frequency Response10Hz–30kHz (±1dB)
Input ImpedancePhono: 50kΩ, High level: 100kΩ
Output LevelUp to 25V RMS
Output Impedance<600Ω
Signal to Noise RatioHigh Level:90dB, Phono: 70dB
Total Harmonic Distortion<0.005%
Dimensions (W x H x D)397 x 140 x 318
Weight6.4 kg